PABU, the iShares Paris-Aligned Climate Optimized MSCI USA ETF, heads into the week on a quiet but positive footing — up 11% over the past month and with short positioning that remains negligible by any measure.
The price story is the most interesting one here. PABU closed at $74.37 on May 5, gaining 1.2% on the week and extending a strong April recovery. The 11% one-month gain stands out for a broadly diversified climate-screened equity ETF, likely reflecting a broader re-risk into US large-cap equities following the tariff-driven volatility of early April. That context matters: the fund's short interest history shows a clear spike in early April — short shares briefly topped 27,000 — before collapsing sharply through mid-April as the market stabilised.
Short positioning is, in plain terms, not a story here. Estimated short interest is just 0.046% of the float — a fraction of a percent, and effectively noise for an ETF of this type. The one-day jump of 34% in estimated short shares sounds alarming in percentage terms, but the absolute figure moved from roughly 10,800 to 14,500 shares. That is a rounding error relative to total float. The ORTEX short score of 28.2 is well below any threshold that would flag meaningful bearish conviction.
Borrow conditions reflect the same picture. Availability is extremely loose — the lending pool is almost entirely unused, with utilisation barely registering at 0.01% across the entire 30-day lookback. Cost to borrow has eased materially over the past week, dropping roughly 21% to 5.1%, after spiking as high as 14.8% in late March. That March spike coincided with the early-April volatility period when short interest was briefly elevated. With borrow demand now dormant and availability wide open, there is no squeeze pressure of any kind.
The most recent dividend was $0.14 per share, announced in mid-March 2026. The fund has distributed dividends irregularly, with prior payments on record from 2022, so the distribution cadence is light. No earnings event applies to this vehicle.
What to watch: the relevant variable for PABU from here is whether the broader US large-cap rally that drove the April recovery continues to hold, and whether climate-screened US equity strategies attract or shed flows relative to unscreened equivalents as macro conditions evolve.
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